<div class="row">
    <div class="col-md-3">
        <span class="hipster img-fluid rounded"></span>
    </div>

    <div></div>
    <div id="cover">
        <form method="get" action="">
            <div class="tb">
                <div class="td">
                    <label>
                        <input #box type="text" (keyup.enter)="search(box.value)" placeholder="Search" required/>
                    </label>
                </div>
                <div class="td" id="s-cover">
                    <button type="submit" (click)="search(box.value)">
                        <div id="s-circle"></div>
                        <span></span>
                    </button>
                </div>
            </div>
        </form>
    </div>
    <a routerLink="upload-page">导入数据</a>
</div>
